2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
132 lines
4 KiB
C
132 lines
4 KiB
C
/* $NetBSD: cdefs_aout.h,v 1.20 2006/05/18 17:55:38 christos Exp $ */
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/*
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* Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.
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* Public domain.
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*/
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#ifndef _SYS_CDEFS_AOUT_H_
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#define _SYS_CDEFS_AOUT_H_
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#define _C_LABEL(x) __CONCAT(_,x)
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#define _C_LABEL_STRING(x) "_"x
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#if __STDC__
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#define ___RENAME(x) __asm(___STRING(_C_LABEL(x)))
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#else
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#define ___RENAME(x) ____RENAME(_/**/x)
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#define ____RENAME(x) __asm(___STRING(x))
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#endif
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#define __indr_reference(sym,alias) /* nada, since we do weak refs */
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#ifdef __GNUC__
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#if __STDC__
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#define __strong_alias(alias,sym) \
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__asm(".global " _C_LABEL_STRING(#alias) "\n" \
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_C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
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#define __weak_alias(alias,sym) \
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__asm(".weak " _C_LABEL_STRING(#alias) "\n" \
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_C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
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/* Do not use __weak_extern, use __weak_reference instead */
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#define __weak_extern(sym) \
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__asm(".weak " _C_LABEL_STRING(#sym));
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#if __GNUC_PREREQ__(4, 0)
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#define __weak_reference(sym) __attribute__((__weakref__))
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#else
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#define __weak_reference(sym) ; __asm(".weak " _C_LABEL_STRING(#sym))
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#endif
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#define __warn_references(sym,msg) \
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__asm(".stabs \"" msg "\",30,0,0,0"); \
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__asm(".stabs \"_" #sym "\",1,0,0,0");
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#else /* __STDC__ */
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#define __weak_alias(alias,sym) ___weak_alias(_/**/alias,_/**/sym)
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#define ___weak_alias(alias,sym) \
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__asm(".weak alias\nalias = sym");
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/* Do not use __weak_extern, use __weak_reference instead */
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#define __weak_extern(sym) ___weak_extern(_/**/sym)
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#define ___weak_extern(sym) \
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__asm(".weak sym");
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#if __GNUC_PREREQ__(4, 0)
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#define __weak_reference(sym) __attribute__((__weakref__))
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#else
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#define ___weak_reference(sym) ; __asm(".weak sym");
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#define __weak_reference(sym) ___weak_reference(_/**/sym)
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#endif
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#define __warn_references(sym,msg) \
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__asm(".stabs msg,30,0,0,0"); \
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__asm(".stabs \"_/**/sym\",1,0,0,0");
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#endif /* __STDC__ */
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#else /* __GNUC__ */
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#define __warn_references(sym,msg)
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#endif /* __GNUC__ */
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#if defined(__sh__) /* XXX SH COFF */
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#undef __indr_reference(sym,alias)
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#undef __warn_references(sym,msg)
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#define __warn_references(sym,msg)
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#endif
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#define __IDSTRING(_n,_s) \
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__asm(".data ; .asciz \"" _s "\" ; .text")
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#undef __KERNEL_RCSID
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#define __RCSID(_s) __IDSTRING(rcsid,_s)
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#define __SCCSID(_s)
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#define __SCCSID2(_s)
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#if 0 /* XXX userland __COPYRIGHTs have \ns in them */
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#define __COPYRIGHT(_s) __IDSTRING(copyright,_s)
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#else
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#define __COPYRIGHT(_s) \
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static const char copyright[] __attribute__((__unused__)) = _s
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#endif
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#if defined(USE_KERNEL_RCSIDS) || !defined(_KERNEL)
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#define __KERNEL_RCSID(_n,_s) __IDSTRING(__CONCAT(rcsid,_n),_s)
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#else
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#define __KERNEL_RCSID(_n,_s)
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#endif
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#define __KERNEL_SCCSID(_n,_s)
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#define __KERNEL_COPYRIGHT(_n, _s) __IDSTRING(__CONCAT(copyright,_n),_s)
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#ifndef __lint__
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#define __link_set_make_entry(set, sym, type) \
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static void const * const \
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__link_set_##set##_sym_##sym __used = &sym; \
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__asm(".stabs \"___link_set_" #set "\", " #type ", 0, 0, _" #sym)
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#else
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#define __link_set_make_entry(set, sym, type) \
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extern void const * const __link_set_##set##_sym_##sym
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#endif /* __lint__ */
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#define __link_set_add_text(set, sym) __link_set_make_entry(set, sym, 23)
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#define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym, 23)
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#define __link_set_add_data(set, sym) __link_set_make_entry(set, sym, 25)
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#define __link_set_add_bss(set, sym) __link_set_make_entry(set, sym, 27)
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#ifdef __minix
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/* GNU binutils 2.x doesn't support a.out link sets. We need to workaround
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* this by explicitely creating the N_SETV structure. */
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#define __link_set_decl(set, ptype)
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#else
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#define __link_set_decl(set, ptype) \
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extern struct { \
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int __ls_length; \
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ptype *__ls_items[1]; \
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} __link_set_##set
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#endif /* !__minix */
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#define __link_set_start(set) (&(__link_set_##set).__ls_items[0])
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#define __link_set_end(set) \
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(&(__link_set_##set).__ls_items[(__link_set_##set).__ls_length])
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#define __link_set_count(set) ((__link_set_##set).__ls_length)
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#endif /* !_SYS_CDEFS_AOUT_H_ */
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